Composition for washing and antidandruff treatment of hair and the scalp, based on selenium sulphide and nonionic surfactant of the polyglycerolated or alkylpolyglycoside type

Abstract

The present invention relates to a composition for washing and antidandruff treatment of hair and the scalp, containing in an aqueous medium at least selenium sulphide, at least one nonionic surface-active agent of the polyglycerolated or alkylpolyglycoside type, and at least one suspending agent chosen from the anionic cellulose derivatives and the biopolysaccharides.

Claims

1. Cosmetic composition for washing and antidandruff treatment of hair and the scalp containing in an aqueous medium at least:

a) from 0.1 to 5% by weight of selenium sulphide in suspension;

b) from 5 to 50% by weight of a polyglycerolated or alkylpolyglycoside nonionic surfactant selected from the group consisting of:

(A) compounds prepared by condensation, using acid catalysis, of 2 to 10 moles of glycidol per mole of alcohol or alpha diol containing 10 to 14 carbon atoms, at a temperature of 50.degree. to 120.degree. C.; and

(B) compound corresponding to the following formula:

c) from 0.2 to 5% by weight of a suspending agent consisting essentially of xanthan gum or scleroglucan gum;

2. Composition according to claim 1, where the selenium sulphide is in the form of a powder whose particles have a particle size of less than 200 microns.

3. Composition according to claim 1, where the polyglycerolated nonionic surfactant is selected from the group consisting of:

(.alpha.) the compounds prepared by condensation, using alkaline catalysis, of 3.5 moles of glycidol with an alpha diol having 12 carbon atoms; and

(.beta.) the compounds prepared by condensation of 3.5 moles of glycidol with a mixture of C.sub.11 -C.sub.14 alpha diols.

4. Composition according to claim 1, where the biopolysaccharide is selected from the group consisting of:

the xanthan gums obtained by the action of the bacterium Xanthomonas campestri and its mutants or variants, comprising mannose, glucose and glucuronic acid in their structure, which have a molecular weight of between 1,000,000 and 50,000,000;

the biopolymer PS 87 generated by the bacterium Bacillus polymyxa, containing glucose, galactose, mannose, fucose and glucuronic acid in its structure;

the biopolymer S88 generated by the strain Pseudomonas ATCC 31554, containing rhamnose, glucose, mannose and glucuronic acid in its structure;

the biopolymer S130 generated by the strain Alcaligenes ATCC 31555, containing rhamnose, glucose, mannose and glucuronic acid in its molecule;

the biopolymer S139 generated by the strain Pseudomonas ATCC 31644, containing rhamnose, glucose, mannose, galactose and galacturonic acid in its molecule;

the biopolymer S198 generated by the strain Alcaligenes ATCC 31853, containing rhamnose, glucose, mannose and glucuronic acid in its molecule;

the biopolymer BM07, containing units derived from glucose, galactose and pyruvic, succinic and acetic acids in its molecule;

the biopolymer AM-2, containing glucose, rhamnose, mannose and glucuronic acid in its molecule; and

the scleroglucans corresponding to the formula: ##STR7## where q varies from 500 to 1600, optionally treated with glyoxal.

5. Composition according to claim 1, where the suspending agent is combined with an inorganic derivative of silicon selected from the group consisting of the oxide and the silicates.

6. Composition according to claim 1, containing, in addition, suspending agents other than the anionic cellulose derivatives or the biopolysaccharides, chosen from:

A/The compounds of the following formula:

B/The oxides of dimethyl(C.sub.16 -C.sub.22)alkylamines;

C/The compounds of formula:

R.sub.7 and R.sub.8, which are identical or different, denote C.sub.12 -C.sub.20 linear alkyl groups;

Z denotes an oxygen atom, a sulphur atom or a sulphoxide group;

Y denotes an oxygen atom, a sulphur atom, a sulphoxide group or a methylene group;

the sum of the number of carbon atoms of R.sub.7 and R.sub.8 varies from 24 to 40;

when Z or Y denotes sulphoxide, Y or Z does not denote sulphur.

7. Composition according to claim 6, where the suspending agents of formula (X) are chosen from those in which:

(i) R' is a C.sub.11 -C.sub.21 alkyl or alkenyl radical, and X is:

a group COOA where A is a mono- or polyhydroxyalkyl radical derived from a C.sub.2 -C.sub.3 polyol or a radical CH.sub.2 CH.sub.2 SO.sub.3 M where M denotes an alkali metal, ammonium or a C.sub.1 -C.sub.4 alkanolamine residue;

a group CO(OCH.sub.2 CH.sub.2).sub.r --OH where r has a value of between 2 and 150;

a group ##STR8## where s has a value of between 2 and 150; the free OH functional groups of the groups defined above being able to be esterified with an acid R"COOH where R" is a C.sub.11 -C.sub.21 alkyl or alkenyl;

a group CONR.sub.4 R.sub.5 where R.sub.4 and R.sub.5 represent hydrogen or C.sub.1 -C.sub.4 hydroxyalkyl, one at least representing a C.sub.1 -C.sub.4 hydroxyalkyl;

a group OSO.sub.3 M or 1/3 PO.sub.4.sup.3- M.sub.3 where M represents an alkali metal, ammonium or a C.sub.1 -C.sub.4 alkanolamine residue;

(ii) R' denotes a radical R.sub.6 (OC.sub.2 H.sub.4).sub.1 --OCH.sub.2 and X denotes a group COOM where M has the meaning shown above, R.sub.6 denoting a C.sub.12 -C.sub.14 alkyl radical and 1 an integer or a decimal number of between 2.5 and 10; or else R.sub.6 denotes oleyl and 1 varies from 2 to 9 or else R.sub.6 denotes (C.sub.8 -C.sub.9)-alkylphenyl and 1 varies from 4 to 8;

(iii) R' denotes a (C.sub.12 -C.sub.16)alkyl ether group and X a group CONR.sub.4 R.sub.5, in which R.sub.4 and R.sub.5 have the same meaning as that shown above.

8. Composition according to claim 1, which has a pH of between 2 and 9.

9. Composition according to claim 1, where the aqueous medium consists of water or a mixture of water and a cosmetically acceptable solvent selected from the group consisting of the C.sub.1 -C.sub.4 lower alcohols, the alkylene glycols and the glycol ethers.

10. Composition according to claim 1, being present in the form of a thick liquid, gel, cream or aerosol foam.

11. Process for washing and cosmetic treatment in order to remove dandruff from the hair and the scalp, comprising the steps of applying a composition as defined according to claim 1 to the hair and scalp, and then rinsing.